Matches in Library of Congress for { ?s ?p 1981. }
- 80016158 date "1981".
- 80016159 date "1981".
- 80016163 date "1981".
- 80016166%2F%2Fr82 date "1981".
- 80016176 date "1981".
- 80016177 date "1981".
- 80016178%2F%2Fr922 date "1981".
- 80016186 date "1981".
- 80016188%2F%2Fr942 date "1981".
- 80016189%2F%2Fr86 date "1981".
- 80016192%2F%2Fr962 date "1981".
- 80016193%2F%2Fr85 date "1981".
- 80016196%2F%2Fr913 date "1981".
- 80016198%2F%2Fr88 date "1981".
- 80016210%2F%2Fr82 date "1981".
- 80016214 date "1981".
- 80016222%2F%2Fr85 date "1981".
- 80016229%2F%2Fr953 date "1981".
- 80016232%2F%2Fr976 date "1981".
- 80016234 date "1981".
- 80016236 date "1981".
- 80016243 date "1981".
- 80016252 date "1981".
- 80016260 date "1981".
- 80016262%2F%2Fr842 date "1981".
- 80016273 date "1981".
- 80016278 date "1981".
- 80016280 date "1981".
- 80016281%2FMN%2Fr92 date "1981".
- 80016288 date "1981".
- 80016297 date "1981".
- 80016298 date "1981".
- 80016300 date "1981".
- 80016318 date "1981".
- 80016325 date "1981".
- 80016338%2F%2Fr82 date "1981".
- 80016340 date "1981".
- 80016342 date "1981".
- 80016344%2F%2Fr97 date "1981".
- 80016346%2F%2Fr89 date "1981".
- 80016353 date "1981".
- 80016357 date "1981".
- 80016372%2F%2Fr955 date "1981".
- 80016373%2F%2Fr91 date "1981".
- 80016375 date "1981".
- 80016378 date "1981".
- 80016388%2F%2Fr84 date "1981".
- 80016399 date "1981".
- 80016402%2F%2Fr873 date "1981".
- 80016405 date "1981".
- 80016406 date "1981".
- 80016414%2F%2Fr86 date "1981".
- 80016421 date "1981".
- 80016424 date "1981".
- 80016430 date "1981".
- 80016442 date "1981".
- 80016452 date "1981".
- 80016458 date "1981".
- 80016459 date "1981".
- 80016463%2F%2Fr852 date "1981".
- 80016468%2F%2Fr88 date "1981".
- 80016475 date "1981".
- 80016476 date "1981".
- 80016481 date "1981".
- 80016484 date "1981".
- 80016486 date "1981".
- 80016487%2F%2Fr862 date "1981".
- 80016488 date "1981".
- 80016500 date "1981".
- 80016506 date "1981".
- 80016507 date "1981".
- 80016513 date "1981".
- 80016517%2F%2Fr902 date "1981".
- 80016532%2F%2Fr86 date "1981".
- 80016540 date "1981".
- 80016545%2F%2Fr85 date "1981".
- 80016552 date "1981".
- 80016554 date "1981".
- 80016556%2F%2Fr872 date "1981".
- 80016559 date "1981".
- 80016572%2F%2Fr95 date "1981".
- 80016576 date "1981".
- 80016578%2F%2Fr963 date "1981".
- 80016582 date "1981".
- 80016583%2F%2Fr90 date "1981".
- 80016587 date "1981".
- 80016590 date "1981".
- 80016594%2F%2Fr842 date "1981".
- 80016595 date "1981".
- 80016610 date "1981".
- 80016613%2F%2Fr82 date "1981".
- 80016615 date "1981".
- 80016616 date "1981".
- 80016617 date "1981".
- 80016619 date "1981".
- 80016628%2F%2Fr922 date "1981".
- 80016631 date "1981".
- 80016632%2F%2Fr965 date "1981".
- 80016633 date "1981".
- 80016639 date "1981".